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30 World Changing Events & Stories of the 20th Century (Conclusion)
10. Nazi Holocaust Exposed to the World (1945)As American soldiers liberated the Buchenwald concentration camp in Germany, they encounterd
survivors who looked like walking skeletons. Most prisoners had lost at least 40% of their body weight.
Soldiers began to report the atrocities committed by the Nazis, particularly against Jews at Buchenwald and other
camps liberated by Allied troops. An estimated 6 million Jews died in the Nazi Holocaust, although
scholars maintain that the definition of the Holocaust should also include the Nazis' systematic murder of millions of people
in other groups, including ethnic Poles, the Romani, Soviet civilians, Soviet prisoners of war, people with disabilities,
homosexuals, Jehovah's Witnesses, and other political and religious opponents. By
this definition, the total number of Holocaust victims would be between 11 million and 17 million people.

9. DNA Discovered (1953)
In
1953, biologists James Watson and Francis Crick discovered that DNA is a "double helix polymer” that looks
like a twisted rope-ladder. They found that DNA is a nucleic acid that contains
the genetic instructions used in the development and functioning of all known living organisms. The
discovery demonstrated that DNA is the most basic genetic material and led to new medical technologies and ethical controversies
over genetic engineering. It has also created forensic science and criminal technology advances.

8. New Polio Vaccine Works (1953)Polio is an acute viral infectious disease that spreads from
person to person, primarily via the fecal-oral route. It was one of the most dreaded childhood diseases
of the 20th century. Each year thousands of children suffered from polio. In
many cases, the disease left the children paralyzed and condemned some to life with an iron lung. It
even affected U.S. president Franklin D. Roosevelt. On March 27, 1953, a University of Pittsburgh
team discovered a vaccine that effectively combated the disease. The vaccine has eradicated polio
from most countries in the world.

7. Women's Suffrage in the U.S. (1920)In 1920, The 19th Amendment to the United States Constitution
was ratified. It prohibited discrimination in voting based on sex. One hundred
and forty-four years after the birth of the republic, American women were given the right to vote. It
was a giant step in the women’s civil rights movement of the 20th century.

6. JFK Assassinated (1963)The most influential and shocking assassination of the 20th century was John F. Kennedy. On
Nov. 22, 1963, President Kennedy was shot dead in Dallas, Texas. World news and television covered
the events surrounding the assassination and the president's funeral nonstop for weeks. The man accused of the assassination,
Lee Harvey Oswald, was shot dead Nov. 24, 1963, on national TV. Kennedy’s death greatly influenced
U.S. national and foreign policies. It remains one of the most controversial events in history, with many conspiracy theories surrounding the incident.

5. Penicillin Discovered (1928)
Penicillin
is a group of antibiotics derived from Penicillium fungi. Penicillin antibiotics are historically
significant because they are the first drugs that were effective against many previously serious diseases such as syphilis
and Staphylococcus infections. In 1928, Sir Alexander Fleming discovered the drug, which counteracted
harmful bacteria. Fleming made the discovery by accident when he contaminated a bacteria culture with
a "Penicillium notatum" mold. He noticed that the non-toxic mold halted the bacteria's
growth, and later conducted experiments to show penicillin's effectiveness in combating a wide spectrum of harmful
bacteria.

4. The First Human Flight (1903)The Wright brothers are two Americans credited with inventing and building the world's first
successful airplane and making the first controlled, powered and sustained heavier than air human flight. On December
17, 1903, Orville Wright flew a 750-pound aircraft, powered by a gasoline engine across the sand hills of Kitty Hawk,
N.C. He traveled 120 feet. Orville’s brother Wilbur would later stay aloft
for 59 seconds. It was the first time a powered machine left the ground. Today,
air travel has become a common and essential aspect of society.

3. Japan Bombs Pearl Harbor (1941)On December 7, 1941, Japanese planes bombed the United States Pacific Fleet at Pearl Harbor in Hawaii.
The
attack consisted of two aerial waves totaling 353 aircraft, launched from six Japanese aircraft carriers.
The attack sank four U.S. Navy battleships and damaged four more. The Japanese also sank or
damaged three cruisers, three destroyers, destroyed 188 aircraft, and caused personnel
losses of 2,402 killed and 1,282 wounded. It was some of the biggest news of WWII and instantly flashed across the world via radio.
The United States declared war on Japan, so Germany declared war on the United States on Dec. 11, 1941.
America, along with every other major power in the world, was now in World War II and ready to help beat down
the Axis powers.

2. Man on the Moon (1969)The United States
Apollo 11 mission was the first crewed spaceflight to land on the moon. It launched on July 16, 1969
and on July 20 astronauts Neil Armstrong and Buzz Aldrin became the first people to walk on the moon. The
mission fulfilled U.S. President John F. Kennedy's goal of reaching the moon by the end of the 1960s, which he had
expressed during a speech given on May 25, 1961. Armstrong's first words after
he set foot on Earth's only natural satellite was "that's one small step for man, one giant leap for mankind."
In the following years a series of U.S. manned missions reached the moon, although many claim the moon landing
is shrouded with mystery.

1. The Atomic Age Begins (1945)There is little doubt that the most influential and important story of the 20th century is the nuclear bombings of the Japanese cities Hiroshima and Nagasaki. At
9:15 a.m. on Aug. 6, 1945, a U.S. bomber dropped a nuclear bomb on the Japanese city of Hiroshima. Hiroshima
was instantly destroyed and fires engulfed the city. The bomb instantly killed 60,000 people with
relatively few of them being soldiers. Three days later another nuclear bomb was dropped on Nagasaki, combined the bombs killed as many as 140,000 people in Hiroshima and 80,000 in Nagasaki by the end
of 1945. Six days after the detonation over Nagasaki, on August 15, Japan announced its surrender
to the Allied Powers, signing the Instrument of Surrender on September 2, officially ending the Pacific War and therefore
World War II. Germany had signed its unavoidable Instrument of Surrender on May 7, ending the war
in Europe.

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